STMicroelectronics AEK-POW-SPSB081 Evaluation Board

STMicroelectronics AEK-POW-SPSB081 Evaluation Board features various standby modes for minimal power consumption. The STMicroelectronics AEK-POW-SPSB081 has programmable local and remote wake-up capabilities. The board is built on the SPSB081 power management system IC, featuring a low-drop voltage regulator (V1) for the system microcontroller and another regulator (V2) for tracking V1 or supplying external loads like sensors. V1 maintains a fixed 5V rail with overvoltage detection, while V2 can operate as a voltage tracker for V1 or an independent regulator programmable via SPI with 5V or 3.3V.

Features

SPSB0815 power management IC is AEC-Q100 qualified
One 5V low drop voltage regulator (V1) for the microcontroller and peripheral supply, with a current regulation of 250mA maximum
One configurable via SPI low drop voltage regulator (V2) for 5V or 3.3V, also used as a tracker for V1, and with off-board protection, with a current limitation of 100mA maximum
Configurable window watchdog from microcontroller
Debug mode available with watchdog disablement
ISO 17987-4/2016 compliant LIN transceiver
ISO 11898-2/2016 and SAE J2284 compliant CAN-FD transceiver with local failure and bus failure diagnosis

WU1 wake-up pin with programmable cyclic sense functionality
4 high-side drivers (0.14A, R_ON = 7 Ω) configurable in four different modes (OFF, ON, TIMED, and PWM) suitable to drive external LED modules or supply external contacts
DIR pin to drive HS outputs (OUT 1 to OUT 4) manually
Programmable periodic system wake-up feature
DIAGN output pin to notify system error conditions
Current monitoring for all internal high-side drivers
Open-load diagnosis for all outputs
V1 overvoltage detection and protection
Device temperature warning and protection

STMicroelectronics AEK-POW-SPSB081 Evaluation Board

Features

Block Diagram

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